Yamaha SY85 Owner's Manual page 108

Out1 Dry
This parameter and the "Out1 Wet" parameter, above, work together to
balance the effect ("wet") and direct ("dry") signals delivered via the OUTPUT
1 jacks. Higher "Out1 Dry" values produce more direct, dry sound in relation
to the effect sound.
Although the "Wet" and "Dry" parameters can be set independently, adjust-
ing one will cause the other to change so that their total is always 100(%).
EFFECT EDIT
VOICE EDIT MODE /
107